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3 min read

Home Hardware Buying Guide

Door Hardware Guide: Types, Functions & Where to Use Them

Choosing a finish is only half the story. This quick guide explains knobs vs. levers, locking vs. non-locking, and when to use dummy, passage, privacy, entry, handlesets, and deadbolts—plus a pocket door bonus.

Door Hardware Styles: Knobs & Levers

Door knobs are round/oval and work across interior and exterior doors in many finishes and profiles.

Round locking door knob example
Classic knob silhouette—easy to mix with traditional trims and rosettes.

Door levers have a bar-shaped handle for a modern look and easier grip—great for accessibility.

Modern lever vs round knob
Levers complement contemporary and transitional interiors.

Locking vs. Non-Locking Hardware

Simply put, locking sets use a key (exterior access) and non-locking sets don’t (interior convenience). You wouldn’t want keys to move room-to-room—so interior doors use dummy, passage, or privacy functions, while exterior doors use keyed entry, handlesets, and deadbolts for security.

Interior Door Functions (Non-Keyed)

Whether you choose a knob or a lever, interior hardware typically comes in three functions:

1) Dummy Knobs & Levers

Dummy door lever

What they are: Non-turning, surface-mounted pulls with no latch—think of them like a decorative handle.

Where they go: Pantry doors, linen closets, and French/double doors where one side is fixed. Shop dummy levers and dummy knobs.

French doors with dummy and passage hardware
Typical French doors: one active, one with a dummy for symmetry and pull.

2) Passage Knobs & Levers (Hall & Closet)

Passage door lever

What they are: Latching but non-locking. Turn the handle to open; no privacy lock.

Where they go: Hallways, closets, utility rooms. Shop passage levers and passage knobs.

Entry closet with passage knobs
Entry closet with passage knobs—latch for closure, no lock needed.

3) Privacy Knobs & Levers (Bed & Bath)

Privacy door knob

What they are: Lock from the inside via button or turn piece; no key. Emergency release hole on the outside.

Where they go: Bedrooms, bathrooms, water closets, home offices. Shop privacy knobs and privacy levers.

Privacy lever on bathroom door
Privacy sets provide peace of mind without keys—and include emergency access.

Exterior/Keyed Hardware

  1. Entry knobs & levers (keyed, often paired with deadbolt)
  2. Front door handlesets (decorative exterior grip + interior knob/lever + deadbolt)
  3. Deadbolts (single or double cylinder)

1) Entry Knobs & Levers

Keyed entry knob and lever

What they are: Keyed handles that lock the latch; often paired with a deadbolt or sold in combo packs for added security. Shop keyed entry levers and entry knobs.

Where they go: Exterior access points—front, back, garage, patio, cellar doors.

Exterior door with entry + deadbolt
Mudroom exterior door with keyed entry + deadbolt for layered security.

2) Front Door Handlesets

Front door handleset

What they are: A coordinated set—deadbolt, exterior long grip, and interior knob or lever. Shop front door handlesets.

Where they go: Primarily front entries (including double doors where two sets may be needed), but customers also use them on patio or outbuilding doors.

White front door with bronze handleset
Oil-rubbed bronze handleset adds presence to a bright entry.

3) Deadbolts

Single cylinder (key outside, thumb-turn inside) and double cylinder (key both sides).

Single Cylinder Deadbolts

Single cylinder deadbolt

Use with: Entry knobs/levers or handlesets for everyday exterior security. Shop single-cylinder deadbolts.

Note: We can key alike your entry sets and deadbolts so one key opens them all. Ask us!

Deadbolt and entry combo

Double Cylinder Deadbolts

Double cylinder deadbolt

What they are: Key required from both sides. Shop double-cylinder deadbolts.

Where they go: Select applications needing extra security (e.g., doors with nearby glass). Always follow your local residential codes and safety guidelines.

Dutch door with entry + deadbolt

Bonus: Pocket Door Hardware

Pocket/sliding door hardware is designed for doors that retract into a wall or slide past an opening.

Sliding Door Cup Pull

Sliding door cup pull
Round cup pulls sit flush—ideal for bypass and pocket doors.

This mudroom uses a glass-paneled pocket door with a black round passage cup pull.

Pocket door with round cup pull

Passage Pocket Door Lock

Non-locking pull for a door that slides into the wall; great for closets. Example: round passage pocket lock.

Passage pocket door lock on closet

Privacy Pocket Door Lock

Includes an interior lock for bathrooms/bedrooms with sliders. Example: matte black privacy pocket lock.

Privacy pocket door lock on bathroom

Need a Hand? More Helpful How-Tos

Questions? Chat with us or email support@doorcorner.com. Our family is happy to help you choose the right interior and exterior hardware.

Shop Door Knobs   |   Shop Door Levers



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